Letter 41009

Etching agents that are used for 80%Ni-20%Cr, 86%WC-10%CO-4%Cr [India] 

June 5, 2006

What are the etching agents that are used for 80%Ni-20%Cr,86%WC-10%CO-4%Cr to find their microstructure.

Rambabu Arji
- Roorkee, India

Nichrome will etch is a solution containing 15.5 g of ammonium cerium nitrate, 100 ml of water and 6 ml of nitric acid.

Dr. Gary Callon     University of Dundee Arbroath, Scotland

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